Arrangement of an apparatus intended for process washing

ABSTRACT

A washing device for washing an interior of a process device is provided. The washing device moveably connected to the process device by a fastening means, and a washing medium of the washing device is led at least partly inside the body of the washing device in order to spray the washing medium to a target via a plurality of nozzles disposed in the body. The washing device has cleaning means including additional nozzles for cleaning parts of the washing device. One or more parts of the washing device have inclined outer surfaces such that the parts are totally visible when viewed from the spraying directions of the additional nozzles.

TECHNICAL FIELD

The invention relates to an apparatus intended for process washing, bymeans of which a process device is washable by means of a washingdevice, that moves inside the same. The washing device is connectedmoveably in connection the process device by means of fastening means,whereby the washing medium of the washing device is arranged to be ledat least partly inside the body of the washing device in order to spraythe washing medium to a target by means of nozzles existing in the bodyof the washing device or correspondingly. The apparatus comprisescleaning means in order to keep the washing device itself cleanessentially by influence of the washing medium to be sprayed.

BACKGROUND OF INVENTION

It is nowadays known to use washing devices for process washing, inwhich the supply assembly for the washing medium is being led totallythrough the washing device, such as through its body and at least partlyinside the fastening means connecting the same to the process device,such as e.g. an attachment frame fastened e.g. with screws, and alsoe.g. partly inside a running motor and gear acting as the drivingdevice. Furthermore depending on the process device, the washing devicecomprises e.g. according to FIGS. 1a and 1 b a body, that rotates aroundan axis, that is essentially perpendicular to its longitudinal axis, or,that rotates essentially around its longitudinal axis, which body isequipped with nozzles in order to direct the washing medium being ledthrough the same to the surfaces to be washed of the process device. Forthe purpose described above it is known to use most heterogeneouswashers, the operating principle of which is to act by influence of thepressure or flow of the washing liquid or, that are as described abovemoveable by external power.

One problem nowadays still involved with the type of washing devices asdescribed above is such, that because the devices themselves “getdirty”, which is naturally due to the washing process itself or in otherwords because of splashes and flowing down of the washing medium and thesubstances being loosened by the same from the walls of the processdevice on the process washing device or because of material, that getscollected on the process washing device during normal operation of theprocess device, regular maintenance and service measures are required,so that the components and fastening means belonging to the washingdevice in question would not get covered under a too high amount ofmass, in which case the services of the said device would get moredifficult and might even totally jeopardize operating of the devicetotally e.g. due to corrosion. In present washing devices it is known touse furthermore one or several auxiliary washers e.g. according to theone shown in FIG. 1a, which as being connected to the body of theprocess device enables spraying of the washing medium to the surfaces ofthe washing device. The solution above is one step in the rightdirection in principle, but an adequate result may not be obtained bythe same in practice under all circumstances. This is due to the fact,that certain parts of the washing device tend to collect dirt despite anauxiliary washer thanks to the traditional structures of the same, thatis why mass may get collected particularly on critical parts, which maycause harms, such as corrosion.

SUMMARY OF INVENTION

It is the aim of the arrangement according to this invention to achievea decisive improvement in the problems described above and thus to raiseessentially the level of prior art. In order to carry out this aim, thearrangement according to the invention is primarily characterized by,that the cleaning means comprise one or several nozzles placed in thebody of the washing device, that is/are directed essentially towards apart of the washing device, and/or, that the washing device is arrangedself-cleanable, by arranging the appearance of one or several parts ofthe washing device totally visible as seen from the spraying direction,such as conical, inclined or in a corresponding manner.

BRIEF DESCRIPTION OF THE DRAWING

As the most important advantages of the arrangement according to theinvention may be mentioned simplicity and efficiency of its principleand those structures applicable for the same for most heterogeneousprocess purposes. Thanks to the arrangement according to the inventionit is thus possible to improve significantly the operating conditions ofthe washing device itself. In addition to the above, the arrangementaccording to the invention makes the service and maintenance measures ofthe washing device significantly easier, because in this connection itis not any more needed to “peel” the washing device traditionally off.Thus by the arrangement according to the invention, the operating timeof the washing device is essentially extended and simultaneously itsservice and maintenance needs are significantly decreased.

In the following description, the invention is described in detail withreference to the appended drawings, in which

FIGS. 1a and 1 b show some traditional washing devices being used forprocess washing and

FIGS. 2a and 2 b show details of solutions being carried out on theprinciple according to the invention.

BEST AND VARIOUS MODE FOR CARRYING OUT INVENTION

The invention relates to an arrangement of an apparatus intended forprocess washing, by means of which a process device is washable by meansof a washing device. The washing device 1 is connected moveably inconnection with the process device by means of fastening means 2. Thewashing medium of the washing device is arranged to be led at leastpartly inside the body 1 a of the washing device in order to spray thewashing medium to a target by means of nozzles 1 b existing in the body1 a of the washing device or correspondingly. The apparatus comprisescleaning means in order to keep the washing device 1 itself cleanessentially by influence of the washing medium to be sprayed. Thecleaning means comprise one or several nozzles 1 b 3, placed in the body1 a of the washing device, that is/are directed essentially towards apart of the washing device and/or on the other hand, the washing deviceis arranged self-cleanable, by arranging the appearance of one orseveral parts of the washing device totally visible as seen from thespraying direction p, such as conical, inclined or in a correspondingmanner.

Furthermore with reference to the embodiments shown in FIGS. 1a and 1 b,the invention is being applied in connection with a washing device, thatis moveable advantageously by means of a driving device K. In this caseat least a part of the washing medium supply assembly 1 c 1 is ledtotally through the washing device, such as inside its body 1 a and thefastening means 2, such as an attachment frame 2 b fastened with screws2 a or like, connecting the same to the process device, and inside thedriving device K, such as a running motor K1 and gear K2 or like. To thebody 1 a of the washing device, there has been arranged furthermore atleast two nozzles 1 b 3, that are directed e.g. according to FIG. 2atowards each other and towards a part existing in the body 1 a of thewashing device, such as an intermediate bearing VL or like.

Furthermore as an advantageous embodiment of the invention, thefastening means 2 of the washing device, such as the internal parts 2 b′of the attachment frame 2 b fastened with screws 2 a, are arranged atleast by the opposite outer surfaces of the same inclined towards eachother on the principle shown in FIG. 2b. Furthermore with reference tothe embodiment shown in FIG. 2a, the outer surfaces of the partsexisting in the body 1 a of the washing device, such as of the casingstructure of the intermediate bearing VL, are arranged inclined in oneor several parts when viewed in a cross section.

It is obvious, that the invention is not limited to the embodimentspresented or described above, but it can be modified within the basicidea of the invention even to a great extent. First of all the body ofthe washing device may be, differing from the T-shaped shown e.g. inFIG. 3, L-shaped or it may be formed of three or more horizontal bodies,that are attached to the center body radially. Correspondingly the bodyof the embodiment according to FIG. 2, may be free by the end, that isopposite to the driving device, or it may be mounted in bearings to thewashing device by both ends of the same. In addition to the above it isnaturally clear, that the arrangement according to the invention may beapplied in connection with a washing device, that is moveable in anypossible way so, that the presented embodiments are intended only toshow certain common ways based on traditional washing device structuresto carry out the invention.

What is claimed is:
 1. A washing device disposed inside a process devicefor washing the process device, said washing device comprising:fastening means moveably connecting the washing device to the processdevice; a body carrying a washing medium of the washing device at leastpartly inside the body; nozzles disposed within the body and arranged tospray the washing medium to a target; cleaning means for cleaning thewashing device, wherein the cleaning means comprise at least one othernozzle disposed in the body and directed towards at least one part ofthe washing device to spray the washing medium to the at least one partof the washing device and clean the at least one part of the washingdevice, wherein the at least one part of the washing device has outersurfaces that are inclined such that the at least one part of thewashing device is totally exposed to a spray of the washing medium fromthe at least one other nozzle.
 2. A washing device according to claim 1,wherein the fastening means includes an attachment frame having internalparts fastened with screws, wherein the at least one other nozzle isdirected towards the internal parts, and wherein the internal partsinclude opposite outer surfaces inclined towards each other.
 3. Awashing device according to claim 1, further comprising a bearingdisposed in said body, wherein the at least one other nozzle is directedtoward a casing structure of the bearing, and wherein the casingstructure includes outer surfaces that are inclined in one or more partswhen viewed from a cross section.
 4. A washing device according to claim2, further comprising a bearing disposed in said body, wherein the atleast one other nozzle is directed toward a casing structure of thebearing, and wherein the casing structure includes outer surfaces thatare inclined in one or more parts when viewed from a cross section.